Quantity   Component name
1 × Arduino Uno r3
20 × WS2812B straight 8 LED module Lots of counterfeits on the market these days. Double check and order a few extra
1 × DC-DC 3A 5V-12V to, 5V Step-down Power, Supply Module
1 × Barrell Jack 2.2x5.5 Female
4 × Countersunk Philips Head M3 X 10 mm Screw
4 × M3 nut
8 × Philips Head countersunk M4 X 12 mm screw
4 × M4 nut
4 × M4 X 4 mm Brass Heat set Threaded Round Insert Nut
1 × 1N5822 Schottky diode SR560, DR150,etc will also work. A 1N4007 will also work just fine
1 × 9v-12V 2A DC power supply
1 × Male to female jumper wires
3 × 3mm LED Get 3 different colours for the indicator LEDs
1 × 5V piezo buzzer
1 × 1N2222A transistor
2 × 1 k resistor
1 × Male header pins 2.54 pitch or the same pitch as the perfboard
1 × Screw terminal blocks 2 pin 2.54 pitch or the same pitch as the perfboard
1 × Screw terminal blocks 3 pin 2.54 pitch or the same pitch as the perfboard
1 × Perfboard 70 x 50mm. You can cut a larger one to this size.
3 × 30 AWG wire For connecting the LED modules together as these wires are thin and flexible. Three different colors to keep tract of wiring.
1 × 22 or 24 AWG wire For making connections on perfboard
2 × 5V DC fan 30x30x8mm